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Our Physician Assistants

At Vail-Summit Orthopaedics & Neurosurgery, our Physician Assistants (PAs) play a crucial role in delivering world-class orthopedic and sports medicine care. Working closely with our renowned surgeons, our PAs provide expert diagnosis, treatment, and post-operative care to help patients recover and return to the activities they love.

Our Physician Assistants

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Amanda
Clementel, PA-C

Dr. John Paul Elton's PA
Foot, Ankle, & Orthopaedic Trauma

Amanda is a member of Dr. Elton's team, specializing in foot and ankle orthopedic care. You’ll find her supporting patients in both the clinic and the operating room across Eagle and Summit County. 

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Heidi
Gruber, PA-C

Dr. Henry Yu's PA
Total Joint Replacement: Hip and Knee

Heidi is a valued member of Dr. Yu’s team, specializing in total joint arthroplasties of the hip and knee. You’ll find her both in clinic and in the operating room across Summit and Eagle Counties.

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Holley
Spears, PA-C

Dr. Ernest Braxton's PA
Neurosurgery, Back, & Spine

Holley is a committed physician assistant on Dr. Braxton’s team, specializing in back and spine care. She provides expert support in both the clinic and the operating room, helping patients navigate their treatment journey.

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Katie
Wolfe, PA-C

Dr. Terrell Joseph's PA
Shoulder, Elbow, Wrist, Hand, Knee, & Orthopaedic Trauma

Katie is a trusted physician assistant on Dr. Terrell Joseph’s team, specializing in shoulder, elbow, wrist, hand, knee, and orthopedic trauma. She provides expert care both in the clinic and the operating room.

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Chris
Dutlinger, PA-C

Dr. Max Seiter's PA
Shoulder, Hip, Knee & Sports Medicine

Chris is a dedicated member of Dr. Max Seiter’s team, specializing in shoulder, hip, knee, and orthopedic trauma. He plays a vital role in supporting patients both in the clinic and the operating room. 

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Shannen 
McNamera, PA-C

Dr. Richard Cunningham's PA
Knee, Shoulder & Sports Medicine

Shannen is a dedicated physician assistant on Dr. Cunningham’s team, specializing in knee, shoulder, sports medicine, and orthopedic trauma. She provides expert care to patients both in the clinic and the operating room.

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Jonathan 
Walker, PA-C

Dr. Bill Sterett's PA
Knee, Shoulder, & Sports Medicine

Jonathan plays a key role on Dr. Sterett’s team. You may first meet him during your initial office visit, prior to seeing Dr. Sterett, but you’ll also see him in the Operating Room, where he assists Dr. Sterett with all surgical procedures. 

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Haley
Zipperer, PA-C

Dr. Matthew Gnirke's PA
Spine, Regenerative Medicine, & Interventional Sports

As a member of Dr. Gnirke's team she specializes in nonsurgical management of various musculoskeletal conditions and utilizes ultrasound-guided techniques for therapeutic treatments, including corticosteroid and platelet-rich plasma (PRP) injections.

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Casey
Farrell, PA-C

Dr. Henry Yu's PA
Total Joint Replacement: Hip and Knee

Casey is a Physician Assistant working alongside Dr. Yu’s team with a focus on total joint replacements. She plays a vital role in patient care, evaluating and treating patients in the clinic and assisting in the operating room. 

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Patrick
Murphy, PA-C

Dr. Erik Dorf's PA
Shoulder, Elbow, Wrist, Hand & Orthopaedic Trauma

Patrick is a dedicated physician assistant on Dr. Erik Dorf’s team. Specializing in upper extremity and orthopedic trauma, he provides expert care for shoulder, elbow, wrist, and hand conditions.

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Georgia
Wiener, PA-C

Dr. Max Seiter's PA
Shoulder, Hip, Knee & Sports Medicine

Georgia is a valued physician assistant on Dr. Max Seiter’s team, specializing in shoulder, hip, knee, sports medicine, fracture care, and orthopedic trauma. She plays a key role in both the clinic and the operating room for Dr. Seiter's practice.

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Cora
Zimmerman, PA-C

Dr. Matthew Gnirke's PA
Spine, Regenerative Medicine, & Interventional Sports

Cora is a valued member of Dr. Gnirke’s team, specializing in interventional spine, sports, and regenerative medicine. In her role, Cora focuses on seeing patients in the clinic and performing ultrasound-guided injections, always striving to deliver the highest level of personalized care.

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